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Aspect Ratio Calculator

Calculate image and video dimensions while preserving the aspect ratio.

Aspect ratio: 16:9

Presets

Change any value — the others are recalculated keeping the ratio.

About this tool

Enter the original width/height to see the ratio (16:9, 4:3, 1:1, etc.); type a new width or height and the other is calculated automatically, keeping the ratio. Handy presets included.

Key Features

  • ✓ Automatic ratio math
  • ✓ 16:9, 4:3, 1:1, 9:16 presets
  • ✓ Proportional dimension solving
  • ✓ Instant result